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WM8711LGEFL Datasheet(PDF) 25 Page - Wolfson Microelectronics plc

No. de Pieza. WM8711LGEFL
Descripción  Internet Audio DAC with Integrated Headphone Amplifier
Descarga  44 Pages
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Fabricante  WOLFSON [Wolfson Microelectronics plc]
Página de inicio  http://www.wolfsonmicro.com
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WM8711LGEFL Datasheet(HTML) 25 Page - Wolfson Microelectronics plc

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Production Data
WM8711L
w
PD, Rev 4.5, August 2011
25
To accommodate system timing requirements the interpretation of BCLK maybe inverted, this is
controlled via the software shown in Table 8. This is especially appropriate for DSP mode.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
0000111
Digital Audio
Interface Format
1:0
FORMAT[1:0]
10
Audio Data Format Select
11 = DSP Mode, frame sync + 2 data
packed words
10 = I
2S Format, MSB-First left-1
justified
01 = MSB-First, left justified
00 = MSB-First, right justified
3:2
IWL[1:0]
10
Input Audio Data Bit Length Select
11 = 32 bits
10 = 24 bits
01 = 20 bits
00 = 16 bits
4
LRP
0
DACLRC phase control (in left, right
or I
2S modes)
1 = Right Channel DAC data when
DACLRC high
0 = Right Channel DAC data when
DACLRC low
(opposite phasing in I
2S mode)
or
DSP mode A/B select ( in DSP mode
only)
1 = MSB is available on 2
nd BCLK
rising edge after DACLRC rising
edge
0 = MSB is available on 1st BCLK
rising edge after DACLRC rising
edge
5
LRSWAP
0
DAC Left Right Clock Swap
1 = Right Channel DAC Data Left
0 = Right Channel DAC Data Right
6
MS
0
Master Slave Mode Control
1 = Enable Master Mode
0 = Enable Slave Mode
7
BCLKINV
0
Bit Clock Invert
1 = Invert BCLK
0 = Don’t invert BCLK
Table 8 Digital Audio Interface Control
Note: If right justified 32 bit mode is selected then the WM8711L defaults to 24 bits.


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